Fault rectification

Fault finding only by qualified electrician. Call on the services of a qualified electrician any time there is a fault. Repairs should only be carried out by a qualified electrician.

Switch off mains fuse, secure against being accidentally switched back on and position a warning sign.

Fault	Cause, measures
Fan does not switch on.	No mains voltage. Check whether the mains fuse has failed. Switch on if necessary. Impeller is blocked. Rectification may only be carried out by a trained specialist: Remove cover. Unlock internal grille or internal shutter via locking hooks. Check impeller and clean if necessary. Humidity control is not working correctly/is faulty with RCH units. Call on the services of a trained specialist.
Motor’s thermal overload protection switches the fan off.	Motor too hot. Wait until the motor has cooled down. Cool-down time can be up to 10 minutes. Unit switches back on automatically after cooling down.
Fan doesn’t react to radio commands	Fans are not correctly set up. Delete transmitter of all components (delete mode). Delete the transmitter on the RLS RC. Power the fan off briefly. Then re-teach the components. Fans are out of range. Switch repeater mode on at a fan that is within range. If the range is still insufficient, deploy additional repeaters (to be provided by the customer).